Toptal Engineering Expert
Using an LLM API As an Intelligent Virtual Assistant for Python Development
With proper instruction, LLMs can be highly effective coding assistants. This step-by-step guide shows you how to generate a call to an external API using Python and the OpenAI API.

Tarek Mohamed Mehrez
Tarek is a software and data engineer specializing in machine learning, software architecture, DevOps, and back-end development. He has served as CTO of Thndr, a company backed by Y Combinator, and has published several research papers on machine learning. Tarek has a master’s degree in computational linguistics from the University of Stuttgart.
WordPress-powered Angular: JWT Authentication Using GraphQL
Setting up authentication in an app with a disparate front end and back end is tricky. This tutorial proposes an innovative solution using JWT and GraphQL.

Sajjad Hossain Sagor
Sajjad is a WordPress developer who specializes in developing themes, plugins, and WooCommerce add-ons. He has led high-budget projects for companies around the world and set up the back end for a WordPress website with more than 200,000 active users and millions of YouTube subscribers. He is also a core contributor to the WordPress community.
Next.js Rendering Techniques: How to Optimize Page Speed
Next.js is best known for server-side rendering, but these innovative strategies can help developers configure web apps for more speed, reduced server load, improved SEO, and much more.

Subhakar Tikkireddy
Subhakar is a front-end developer with extensive experience using React, Next.js, and TypeScript. He specializes in creating MVPs for startups and has worked on projects ranging from cross-platform progressive web and React Native apps to AI-powered browser extensions and a crypto web app used by more than 10,000 investors.
Tested Solutions: Working With React Design Patterns
Design patterns offer a convenient way to tackle challenges with tried-and-tested solutions, saving developers time and effort. Here’s how React design patterns allow for coherent modules with less coupling.

Mudassir Ijaz
Mudassir is a full-stack software engineer specializing in JavaScript frameworks and libraries. He has built many React apps as a senior engineer and has worked across the globe at companies like SAP, Bit, Kwanso, and VoicePing.
Next.js vs. React: A Comparative Tutorial
Discover the differences between React and Next.js, a framework used by companies like TikTok, Hulu, and Nike to supercharge their web apps. Plus: Learn when and how to use Next.js, including rendering, routing, page, and navigation tips.

Ayyaz Ali
Ayyaz is a full-stack developer, founder, and CTO with eight years of experience in a variety of React and JavaScript frameworks. He has deep expertise in handling product builds, and developed an online education platform that has served more than a million students around the world.
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Reusable State Management With RxJS, React, and Custom Libraries
Discover a powerful RxJS and React approach that adds state management to single-page applications. RxJS provides an elegant, succinct, and comfortable implementation for developers that becomes more effective with custom libraries.

Mark Evans
Mark is a full-stack software engineer who has written applications for major service companies including Intel, Disney, Sky, and Vodafone. He has led React and RxJS teams from prototype through commercial release, and holds master’s degrees in physics from Oxford University and King’s College.
The Secret Behind Steady App Performance: Asynchronous JavaScript
JavaScript’s default synchronous methods can freeze an application, scaring off end users. Here’s how you can leverage asynchronous JavaScript techniques to increase control over front-end responsiveness.

Muhammad Ammar Ilyas
Muhammad is a full-stack developer with more than a decade of experience delivering web and mobile applications for various companies, including Scopic, Microblink, and Resulta. He has JavaScript expertise ranging across Node.js, Next.js, React, React Native, and headless WordPress solutions.
SolidJS vs. React: The Go-to Guide
SolidJS is a blazing-fast framework that dodges virtual DOM manipulation. Let’s see how it compares to React, the industry standard, when it comes to components, performance, and developer productivity.

Nathan Babcock
Nathan is a senior React engineer and an expert in streamlining UI/UX with React. As the lead design engineer at Motorola Solutions, he marshaled a product combining React, Angular, and Svelte to company-wide deployment, garnering more than 100,000 downloads. Nathan also developed Hypetrigger, a popular machine vision system for use with streaming services and that is built with React and SolidJS for the front end.
Demystifying Debugging With React Developer Tools
Bugs are often buried deep within the code and software developers spend a great deal of time hunting them down. Many software developers debug front-end code using the browser’s console logging, but this is cumbersome and inefficient. Discover how React Developer Tools can speed up the debugging process by providing powerful tools to inspect components, monitor state and props, and track rendering and performance.

Teimur Gasanov
Teimur is a software developer specializing in web application development. He has extensive experience developing with front-end technologies, such as React, TypeScript, and JavaScript, and has implemented applications for innovative companies such as Klarna, where he designed interfaces for interacting with digital wallets from Apple, Google, and Samsung.
Kotlin vs. Java: All-purpose Uses and Android Apps
Kotlin and Java are two powerful general-purpose languages popular for Android and beyond. We’ll discuss their top features and differences, then focus on how to smoothly transition between the two.

Gabe Giro
Gabriel is a senior Android engineer with eight years of experience building apps from scratch in Kotlin and Java, and facilitating conversions between the two languages. Gabriel has worked on multimillion-dollar apps and has industry experience at companies like HBO and Yahoo.
Investing in Unit Testing: Benefits and Approaches
Stakeholders demand quick fixes for a buggy app release. Such patching is costly, and does not always offer a complete solution. Break the cycle with unit testing, a worthwhile investment in project quality.

Dacian Florea
Dacian is a senior full-stack mobile applications developer and a contributor to the Flutter framework. He specializes in rigorous testing solutions that help companies around the world design and deliver quality software applications.
Building Simple and Efficient Components With React-Bootstrap
With websites being viewed on so many different types of devices and in so many screen sizes, a responsive user interface is more important than ever. Leverage the power of two popular technologies with the React-Bootstrap library for performant, responsive components.

Matej Bilić
Matej is a full-stack developer with expertise across a variety of back-end and web technologies, including React, React Native, Bootstrap, and Django. He specializes in advanced web applications and built a global, bilingual travel and tourism app using React and React Native.
Heavy Computation Made Lighter: React Memoization
Unnecessary component computation drastically reduces application performance. Avoid this pitfall by using React memoization hooks and render component caching.

Prateek Karki
Prateek is a React engineer with more than seven years of experience in web development. An expert in delivering a top-tier user experience through the union of engineering and design, he has worked on enterprise-scale solutions in diverse industries, including roles at Precision Drilling and Fresh Tracks Canada.
React Router Tutorial: Redirect Like a Pro
Naive React routing increases risk and maintenance. This tutorial provides a full exploration of routing approaches, achieving an elegant solution that seamlessly fits into any React code base.

Nathan Babcock
Nathan is a front-end and full-stack developer, and an expert in streamlining UI/UX with React. As the lead design engineer at Motorola Solutions, he marshaled an internal product that included React, Angular, Svelte, and native web components from prototype to corporatewide deployment—garnering more than 100,000 downloads.
Unit Testing in Flutter: From Workflow Essentials to Complex Scenarios
Incorporate comprehensive unit testing into your Flutter project to ensure best practices and reduce bugs before—not after—the app’s release.

Dacian Florea
Dacian is a senior full-stack mobile applications developer, a Flutter expert, and a contributor to the Flutter framework. He helps companies around the world design and implement quality software solutions and deliver excellent user experiences.
A .NET Programmer’s Guide to CancellationToken
Microsoft created a standardized cancellation implementation that has far-reaching capabilities beyond its original use case—from application run states and timeouts to interprocess communications.

Davit Asryan
Davit is a software engineer specializing in .NET and C#. He has created enterprise software for companies like Veritas, serving as a Senior Principal Software Developer. Davit has overseen complex architecture migrations and worked on multimillion-dollar projects.
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